JPS59129973A - Means for moving magnetic head - Google Patents
Means for moving magnetic headInfo
- Publication number
- JPS59129973A JPS59129973A JP386283A JP386283A JPS59129973A JP S59129973 A JPS59129973 A JP S59129973A JP 386283 A JP386283 A JP 386283A JP 386283 A JP386283 A JP 386283A JP S59129973 A JPS59129973 A JP S59129973A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- step motor
- belt
- magnetic head
- track pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
Landscapes
- Moving Of Heads (AREA)
Abstract
Description
【発明の詳細な説明】
不発明は磁気記録再生装置の磁気ヘッド移動手段に関し
、特に外周でのトラックピッチ？内周でのトラックピッ
チより大きくするための磁気ヘッド移動手段に関する、
不発明の目的は、オフトラック童が多いと思わレル外同
でのトラックピッチを大きクシ、オーグンルーブによる
トラック位置側（財）１式での、％ＴＰ工（商トラック
顕裳）化を図ることにある。DETAILED DESCRIPTION OF THE INVENTION The invention relates to a magnetic head moving means of a magnetic recording/reproducing device, and particularly to track pitch at the outer circumference. The uninvented purpose of the magnetic head moving means for increasing the track pitch on the inner circumference is to increase the track pitch on the outer circumference due to the large number of off-track children, and to increase the track pitch on the outer circumference using Ogunlube. The purpose is to promote %TP technology (commercial truck exhibition) at the ceremony.
従来ディスク？用い７ｔ＃ｉＢ気記録再生装置において
に、内外周ともトラックピッチは同じである。Conventional disc? In the 7t#iB recording and reproducing apparatus used, the track pitch is the same on both the inner and outer circumferences.
ディスク上にトラックサーボデータを書き込んだクロー
ズトループによるトラック位置制−万式では問題ｒＣな
いが、オーブンループ制−の場合にはディスクの熱＃張
によるオフトラックが外周トラックはど大キく、高ＴＰ
王化にとって問題となる。In the case of a closed-loop track position system in which track servo data is written on the disk, there is no problem with the RC system, but in the case of the oven-loop system, the off-track due to the heat tension of the disk is very large on the outer tracks, and the temperature is high. T.P.
This is a problem for Wang Hua.
不発明はこのような欠点上除去するための８気ヘノド移
動手段全提供する。The present invention provides a complete 8-gas cylinder transfer means for overcoming these drawbacks.
従来のヘッド移動手段の１実施例として第１図に示すよ
うな方法が考えられている。第１図（ａ）にステップモ
ータ軸に取り付けられるプーリー１、およびそれに１か
れたスチールバンド２、ヘッドキャリッジへの固定端３
および４である。（ｂ）図にステップモータの軸方向に
見た図であり、１３および１４はスチールバンド２の固
定箇所であシ、１５はヘッドキャリッジである。従って
ステップモーターの軸に固定されているので、ステップ
囲転角に応じてヘッドキャリッジに紙面左右方向に移動
する。、従ってこの従来例では円外周でのトラツクピッ
チは一定である。As an example of a conventional head moving means, a method as shown in FIG. 1 has been considered. Figure 1(a) shows a pulley 1 attached to the step motor shaft, a steel band 2 attached to it, and a fixed end 3 attached to the head carriage.
and 4. (b) is a view seen in the axial direction of the step motor, where 13 and 14 are the fixing points of the steel band 2, and 15 is the head carriage. Therefore, since it is fixed to the shaft of the step motor, the head carriage moves in the horizontal direction in the drawing according to the step rotation angle. Therefore, in this conventional example, the track pitch on the outer circumference of the circle is constant.
第２図は不発明の実施例で、１１はプーリーで紙面上１
ん中たら上下に行くに従って径は小さくなっている。１
２はスチールバンド、１３．１４はへラドキャリッジへ
の固定端である６第３図に第２図の実施例を応用した場
合の、第２図を下側からながめた場合である。この因で
プーリー１１が時計１同に（ロ）転すると、プーリーの
径の小さい万にスチールベルトが巻きつき、逆にプーリ
ーが反時計方向に回転するとスチールバンドにプーリー
径の大きい万に巻きつく。従って反時計方向に回転する
場合をヘッドの外周方向への移動となるように設定すれ
ば、ステップモーターの同一のステップ角に対して外側
トラックはどトラックピッチが大きくなる、本発明は媒
体交換の必要のないいわゆるウィンチェスタ−型の装ｙ
ｖｃは有効である。Figure 2 shows an uninvented embodiment, where 11 is a pulley and 1
The diameter becomes smaller as you go up and down. 1
2 is a steel band, and 13 and 14 are fixed ends to the Herad carriage. 6 This is a view of FIG. 2 when the embodiment of FIG. 2 is applied to FIG. 3, as viewed from below. For this reason, when the pulley 11 rotates clockwise, the steel belt wraps around the smaller pulley diameter, and conversely, when the pulley rotates counterclockwise, the steel band wraps around the larger pulley diameter. . Therefore, if the counterclockwise rotation is set to move toward the outer circumference of the head, the track pitch of the outer track becomes larger for the same step angle of the step motor. Unnecessary so-called Winchester-type equipment
vc is valid.
第１図（ａ） （ｂ）は従来の実施例
第２図は本発明の実施例
第３図は本発明の実施例の説明図
１．１１・・・プーリー
２．１２・・・スチールベルト
３、Ａ、１３．１４・・・スチールベルトの固定端１５
・・・ヘッドキャリッジ
以 上
出願人 株式会社諏訪精工舎
代理人 弁理士最上 務
（ｂ）
］、了１ 高
第２図
第３図Figures 1 (a) and (b) are conventional embodiments. Figure 2 is an embodiment of the present invention. Figure 3 is an explanatory diagram of an embodiment of the present invention. 1.11...Pulley 2.12...Steel belt 3, A, 13.14...Fixed end of steel belt 15
・・・Head carriage and above Applicant Suwa Seikosha Co., Ltd. Agent Patent Attorney Mogami (b) ], Ryo 1st High School Figure 2 Figure 3
Claims (1)
記録再生装置の磁気ヘッド移動手段において、ステップ
モーターのプーリーの径＋ｍ分的に変え、該プーリーに
スチτルノ（ンド會巻きつけたことを特徴とする磁気ヘ
ッド移動手段。In a magnetic head moving means of a magnetic recording/reproducing device that increases the track pitch on the outer circumference relative to the inner circumference, the diameter of the pulley of the step motor is changed by +m, and the steel τ loop (end) is wound around the pulley. Characteristic magnetic head moving means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP386283A JPS59129973A (en) | 1983-01-13 | 1983-01-13 | Means for moving magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP386283A JPS59129973A (en) | 1983-01-13 | 1983-01-13 | Means for moving magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59129973A true JPS59129973A (en) | 1984-07-26 |
Family
ID=11569003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP386283A Pending JPS59129973A (en) | 1983-01-13 | 1983-01-13 | Means for moving magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59129973A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614989A (en) * | 1984-04-02 | 1986-09-30 | Seagate Technology | Helical band drive for disc storage apparatus |
| US4654736A (en) * | 1984-04-02 | 1987-03-31 | Seagate Technology | Helical band drive for disc storage apparatus |
-
1983
- 1983-01-13 JP JP386283A patent/JPS59129973A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614989A (en) * | 1984-04-02 | 1986-09-30 | Seagate Technology | Helical band drive for disc storage apparatus |
| US4654736A (en) * | 1984-04-02 | 1987-03-31 | Seagate Technology | Helical band drive for disc storage apparatus |
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